new SILENT fan from S&P

I have been a fan of S&P fans for a while now, I have used 2 nonstop for right at 4years now, helping someone with a fan choice I was on S&P's website and found they have a new silent series of fans and thought I would post a link..

http://solerpalau-usa.com/tdsilent.html

Just picked up this fan for a room I'm working on. Hope it's as good as it (quietly) sounds.

are they like max fan or vortex fans but quiet?